CN103203375B - A kind of cold milling wet leveling machine purging system - Google Patents
A kind of cold milling wet leveling machine purging system Download PDFInfo
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Abstract
The present invention relates to a kind of cold milling wet leveling machine purging system, it contains main purging component, auxiliary purging component, intermediate calender rolls purging component and edge purging component, wherein, the upper purging portion of main purging component is positioned at close to the roll gap place of outlet side top working roll with band steel upper surface, and the lower purging portion of main purging component is positioned at close to the roll gap place of bottom working roll with band steel lower surface; In main purging component, at stripper head, scraper plate is installed, above scraper plate, is provided with baffle plate.Advantage of the present invention: eliminate planisher working roll WR and intermediate calender rolls IR roll surface leveling precision, reduce the interference to main gas seal, forms air knife and purges, reduce air consumption; Enhance upper and lower surface to purge, regulate air-flow, prevent hydrops, prevent edge leveling precision from splashing; Enhance the purging power in plate face, roll gap place, improve and purge effect, anti-upper edge leveling precision splashes; Eliminate edge leveling precision, expand blow gun angle adjustable, increase purging scope and the power of purging, improve purge position positioning precision.
Description
[technical field]
The present invention relates to planisher purging technology field, specifically, is a kind of novel cold milling wet leveling machine purging system.
[background technology]
Baosteel C612 (production line codes) continuous annealing unit (being called for short C612 unit or C612 production line) is the continuous annealing unit that the first bar Self-Integration of Baosteel is built, its planisher is First wide flat steel wet jetting piles 6 roller UC planisher (the i.e. english abbreviation of universalcrowncontrolmill that Chinese No.1 Heavy Mechanical Group Co manufactures and designs, its equipment characteristic is the working roll by adopting pony roll footpath, has the Strip Shape Control function of working roll and intermediate calender rolls roller and middle roll shift simultaneously).Just use for reference the technical scheme of other planisher part leveling precision purging at the design initial stage, purge ability in order to strengthen UC planisher.UC Blow-off System of Skin Pass Mill mainly contains following a few part and forms, and concrete structure layout as shown in Figure 1.
UC Blow-off System of Skin Pass Mill present situation:
1, the former design of UC Blow-off System of Skin Pass Mill:
1.1 main purging component present situations
Main purging component is in planisher working roll (WR) roll gap place.The purging angle in purging portion is respectively 31 ° and 45 ° up and down; Purging portion blow gun number is respectively 11 and 13 up and down; Blow gun is by centre respectively to roller end both sides deflection, and upper and lower blow gun angle of deviation is respectively 65 ° and 25 °.Upper purging portion is special cavity body structure, and compressed air is gas collection in stripper airtight cavity, then forms by the blow gun of front end the air curtain expanded along roll gap to both sides together at WR roll gap place.The stripper of this structure serves dual-use function that is anti-tangle and that purge.As shown in Figure 1 and Figure 2.
Stripper stroke is accurately measured by displacement transducer, and PLC (PLC programmable logic controller (PLC), i.e. programme-control) controls, and level reach under Hydraulic Cylinder, head and upper WR roll surface keep the gap value of 2mm.Purge high pressure draught and play sealing gland effect through forming one air curtain during this gap, prevent above guide plate and drip from air gap with roll surface leveling precision.
1.2 auxiliary purging component present situations
Auxiliary purging component is between vibration-resistant roller and outlet pass line roller roller, only has 500mm with main purging spacing, purges in order to strengthen leveling precision.For alleviating auxiliary purging component to the impact of main purging component and minimizing air consumption, therefore purging the auxiliary purging component of only conduct in design this road initial, being generally in closed condition, for subsequent use to do.Upper purging is " V " type special construction, and can more effectively expand purging scope, the roll gap beyond suppressing bandwidth carries raffinate, as shown in Figure 3.
1.3 intermediate calender rolls (IR) purging component present situation
IR purging portion is in 70mm place on stripper, totally 15 blow guns, purges 45 °, angle.For forming air curtain together at WR and IR Roll-gap position, to blow down the leveling precision be attached on WR and IR roll surface, purification roll surface.
1.4 strip steel edge purging parts present situations
While blowing parts is eliminate steel edge portion to remain leveling precision." C " shape pipe 4-1 two parts composition of Chui YouWS side, limit and DS side, concrete parts are chain pitch wheel and encoder 4-2, and lower platen 4-3,4-4 drive hydraulic cylinder, positioning and guiding bar 4-5, upperpush rod 4-6, blow gun 4-7.Drive lower platen 4-3 by PLC hydraulic control cylinder, then drive chain drive top board, dual-side is blown and does relative equidistance motion.Accurately be positioned the position (while blowing position=bandwidth-110mm) of steel edge portion 55mm with bandwidth change by encoder 4-2, and offset correction (precision 20mm) is set, realize online trace in time and regulate, as shown in Figure 4.
At present, UC Blow-off System of Skin Pass Mill effect and Problems Existing:
2030 newly-increased companies moved back machine unit, and since on December 15th, 2009 goes into operation, smooth purging system function all drops into as scheduled by former design, and initial stage belt steel surface leveling precision mottling of going into operation takes place frequently, and is mainly manifested in:
1) upper surface discontinuity random ellipticity leveling precision mottling, coin is to goose egg size;
2) upper surface continuity longitudinally dirty wire leveling precision mottling;
3) the random fragmentary droplet-like leveling precision mottling of lower surface, size is at 1cm
2-4cm
2;
4) steel edge portion 10mm-40mm wide leveling precision water mark;
5) upper surface Dispersed precipitate tiny point-like leveling precision mottling;
By the deep anatomy of the pattern to leveling precision mottling, distribution situation, degree, to search problem key point in conjunction with the present situation purged, comprehensively analyze leveling precision mottling mechanism of production.Specific as follows:
1) upper surface discontinuity random ellipticity leveling precision mottling producing cause.
Be mainly planisher outlet dropping liquid to cause.The formation of drop is mainly because the leveling precision being heated to 25-40 DEG C is easily condensed into drop after purging atomization.Three places are had: stripper head, afterbody crossbeam and guide plate lower surface through observing dropping liquid point position.Through observation analysis, because stripper head design is unreasonable, and and between roll surface the air gap of 2mm and sealing gland uniformity can not be guaranteed, throw a large amount of raffinates spattered between upper roll and do not collect eliminating, cause leveling precision raffinate to drop onto belt steel surface from stripper head and body of roll gap.The drop of stripper underlying space and the condensation of afterbody crossbeam does not collect discharge in time, and does not install leveling precision baffle plate in outlet, causes leveling precision to pass outlet device space and is splashed to belt steel surface.
2) upper surface continuity longitudinally dirty wire leveling precision mottling producing cause.
Mainly because IR purging portion fails effectively to eliminate the leveling precision that roll surface sticks, after roll surface circumference forms wide strip mottling, copy to belt steel surface by WR, form dirty line.
3) the random fragmentary droplet-like leveling precision mottling Producing reason of lower surface.
Blowing down scavenging air pipe base support hydrops, under purging effect, part hydrops blows afloat and is splashed to band steel lower surface by gyration airflow.
4) producing cause of steel edge portion leveling precision water mark.
Because limit is blown, the angle of purging component is non-adjustable, purging scope is narrower, purging power is not enough; Secondly, while to blow fine setting 20mm offset compensation positioning precision low.In addition, purge point up and down not concentrate on same position.
5) upper surface Dispersed precipitate tiny point-like leveling precision mottling producing cause.
Be atomized the rear leveling precision raffinate particle enrichment produced in planisher outlet small space owing to purging, when the temperature difference is larger, condenses into fine drop and be attached to band steel upper surface formation Dispersed precipitate tiny point-like leveling precision mottling.
[summary of the invention]
The object of the invention is to overcome the deficiencies in the prior art, a kind of novel cold milling wet leveling machine purging system is provided.
The object of the invention is to be achieved through the following technical solutions:
A kind of novel cold milling wet leveling machine purging system, it contains main purging component, auxiliary purging component, intermediate calender rolls purging component, edge purging component, the upper purging portion (stripper purging) of main purging component is positioned at close to the roll gap place of outlet side top working roll with band steel upper surface, and its push-and-pull Shift cylinder is arranged on the both sides, rear end of stripper, and an oil cylinder is respectively established in both sides; The lower purging portion of main purging component is positioned at close to the roll gap place of bottom working roll with band steel lower surface; After vibration-resistant roller is in main purging component, with 45 ° of cant mode elevating control band steel height, and form the band ladle angle of 10 ~ 30 ° with pass line roller.
In " V " type of auxiliary purging component, purging portion (namely V-shape purges) and lower purging portion, be in the upper and lower surface with steel between vibration-resistant roller and pass line roller respectively;
Intermediate calender rolls purging component is on stripper, purges for roll gap near zone between intermediate calender rolls and working roll;
Edge purging component is arranged on outside frame, after pass line roller, purges the edge of the band steel upper and lower surface leaving outlet side pass line roller.
The present invention is directed to existing technology and make following improvement:
(1) adjustment of the stripper Structure and energy of main purging component
Install the scraper plate of new design processing at stripper head, scraper plate is nylon scraper plate, and its structure as shown in the figure.Its principle is: the high pressure draught that in utilization, purging component produces forms together evenly air curtain at roll gap place, and constantly expand to both sides roller end, when meanwhile high pressure draught passes through the close gap with scraper plate along WR roll surface, produce the air curtain after one supercharging, and form sealing gland, stop from gap location drippage leveling precision.Part roll surface raffinate is brought in the scraper plate hydrops cell body of low-pressure area along air-flow, then discharges from both-side opening.In addition, above scraper plate, installing one piece of baffle plate additional, collecting the discharge of backward both sides by throwing the raffinate spilt between a large amount of roller.Along this baffle plate upwards to fog discharge exhausting hole place offset plate by the space shutoff between outlet device, play the effect of leveling precision baffle plate, from outlet device space, be splashed to belt steel surface to prevent leveling precision.
For ensureing sealing gland effect, improve processing and the installation accuracy of nylon scraper plate, guaranteeing that sealing gland is even, control air gap at 3mm-5mm, and realize controlling with roll diameter change PLC.Controlling for realizing stripper PLC, after optimizing as calculated, obtaining the relation of stripper mobile hydraulic cylinder stroke S1 and upper WR radius R 1:
Contrasted by several measured data and result of calculation, error is controlled in 2mm.PLC (programme-control) can be realized automatically control, ensure that sealing gland gap≤5mm.
(2) improvement of intermediate calender rolls purging component
Intermediate calender rolls purging component is positioned at 70mm place above stripper, and its position is comparatively close to stripper, and air curtain together with being formed between upper WR with upper IR roll gap, for alleviating the interference of main gas seal and strengthening and purge effect.Former design Silvent705 type (Si Wante 705 type) nozzle (5b in accompanying drawing 5) is changed into Silvent973 (Si Wante 973 type nozzle) type nozzle (5d in accompanying drawing 5), blow gun becomes fan-shaped substantially, blow gun front end is flat duckbill, compressed air ejects air knife shape air-flow from duckbill blow gun mouth, and blow gun is equidistantly arranged on side by side respectively and purges on pipeline beam axis direction along intermediate calender rolls; Nozzle is installed on intermediate calender rolls and purges on pipeline beam; Pipeline beam both sides have pipe clamp to be fixed on the welding support part of framework memorial archway, and pipeline beam both sides are connected by flexible pipe respectively, pass into compressed air.Gas shock shape is air knife shape by elliptical deformation, can produce wider impact air-flow, turn reduces the impact on main purging, and air curtain is evenly more concentrated.Purge more powerful more outstanding while reduction air consumption, improve roll surface and purge cleaning effect.
(3) improvement of purging component under
The former blow gun tracheae of lower purging component is arranged on poker base, purges angle 45 ° of positions relatively fixing, and cannot regulate.After outlet vibration-resistant roller rises, hydrops in support blows afloat by gyration airflow, is splashed on band steel lower surface and forms leveling precision mottling.Now adopt little corner bracket to replace intrinsic poker base, blow gun tracheae is arranged on little corner bracket, is fixed on machine frame at two sides memorial archway by little corner bracket, and fixes tracheae with pipe clamp, the Hard link at two ends is changed into flexible pipe simultaneously and connects, and realizes purging adjustable angle; Described little corner bracket shape is isosceles right triangle, two right-angle sides be length 100 ~ 200mm.In addition, by former purging angle adjustment to 30 °, make purging closer to Roll-gap position, improve and purge effect.
(4) adjustment of parts is blown on limit
Because edge purge position is too close to plate shape roller, the Silvent705 blow gun of former employing purges angle and cannot regulate, again Silvent705A blow gun is selected, this purges angle and can adjust within the scope of disalignment 30 °, the structure of Silvent705A blow gun is: blow gun and spherical adjustment part are in one, can regulate (increase accompanying drawing 8) departing within the scope of blow gun center line 30 °, blow gun is installed on limit respectively and blows and purge on pipeline (6a) up and down.Single blow gun is changed into two blow gun simultaneously, the structure of two blow gun is (6b), two blow gun adopts Silvent705A blow gun, it is one group with the blow gun of two 100mm spacing of being separated by, be arranged on side by side along purging on pipeline (while purging pipeline or limit blow down purge pipeline) axis direction, and be separately positioned on the left side of blowing on limit and purge and on the upper purging of right side purging and lower purging official road.The edge forming blow gun corresponding up and down and bilateral symmetry purges general layout, utilizes these four groups of blow guns to purge band steel both sides edge upper and lower surface.Two blow guns at a distance of 100-120mm along scavenging conduit axis, are installed on limit side by side and blow and purge on pipeline up and down.Both enhance purging effort like this, too increase limit and blow adjustability, purging scope increases to 200mm from former 100mm, makes it closer to pass line roller, and can make to purge up and down and can be in steel edge portion same position.The degree of regulation of side-play amount is brought up to 10mm from 20mm, and side-play amount setting is accurate more flexibly, to adapt to the needs of adjustment in time.
(5) accessory system improvement:
Accessory system comprises compressed air air supply system and smooth drop liquid gathering system, C612 unit (C612 and production line codes, also can be described as C612 production line,) Blow-off System of Skin Pass Mill is provided with altogether 6 road purging components (in the lower purging portion of the upper purging portion of main purging component (namely stripper purges), main purging component, the V-type of auxiliary purging component purging portion, the lower purging portion of auxiliary purging component, intermediate calender rolls purging component, edge purging component), former design purging pressure is non-adjustable.From purging actual state, and non-pressure is larger, and effect is better.But adopt for difference purging function, effect, effect is formulated and is purged pressure, therefore in the upper purging portion (namely stripper purges) of corresponding main purging component, the lower purging portion of main purging component, purging portion in the V-type of auxiliary purging component, the lower purging portion of auxiliary purging component, intermediate calender rolls purging component, 6 road scavenging pipelines of edge purging component set up pressure-regulating valve, and set up compressed air filtration system, by purging gas, after double-filtration, (filtering accuracy is 5 μm and 0.1 μm) exports as high clean dry compressed air, effectively prevent spray nozzle clogging, improve purging quality.Dropping liquid gathering system mainly installs feeder at corresponding dropping liquid point: 1. baffle collected groove, 2. L-type feeder, 3. dove-tail form feeder.
1. baffle collected groove is installed on the stripper upper end of main purging (stripper purging) parts close to roll gap place
2. L-type feeder is installed on the bottom of main purging component (stripper purging)
3. dove-tail form feeder is arranged on bottom the rear end floor beam of main purging component (stripper purging).
Compared with prior art, good effect of the present invention is:
Through improvement to the smooth purging system of C612 unit, leveling precision defect be improved significantly.Leveling precision mottling oven improvement, from 1.37% of the first quarter in 2010, drops to 0.03% for the second quarter.And this defect is completely controlled at present, it is zero that the quality because of the initiation of leveling precision mottling in 2011 is changed the original sentence to.
Effect contrast before and after the improvement of table 1 purging system
[accompanying drawing explanation]
Fig. 1 UC Blow-off System of Skin Pass Mill structural representation;
The structure diagram of purging component under Fig. 2;
Fig. 3 assists purging component " V " type to purge structure chart;
The structural representation of Fig. 4 edge purging component;
Fig. 5 Silvent blow gun contrasts;
Fig. 6 blows on limit before and after improvement and purges schematic diagram;
Fig. 7 a increases the structural representation purging guide plate newly;
The structure diagram of the lower purging component after Fig. 7 B improves;
Fig. 7 C is newly-increased leveling precision feeder schematic layout pattern;
The front view of the components A of Fig. 7 D Fig. 7 C;
The structural representation of Fig. 8 blow gun shape.
Label in accompanying drawing is respectively: the main purging component of 1-1, 1-2 assists purging component, 1-3 intermediate calender rolls purging component, 1-4 edge purging component, 1-5 stripper, 1-6 guide plate oil cylinder, 1-7 pass line roller, the anti-curling round the roll of 1-8, 4-1C shape is managed, 4-2 chain pitch wheel and encoder, 4-3 lower platen, 4-4 drives hydraulic cylinder, 4-5 positioning and guiding bar, 4-6 upperpush rod, 4-7 blow gun, purging scope after 6-1 improvement, purging scope before 6-2 improvement, 6-3Sundwig plate shape roller, 6-4 pass line roller, the upper purging portion of 7-1, 7-2 scraper plate, 7-3 collects baffle plate, the little corner bracket of 7-4, 7-5 tracheae, 7-6 baffle collected groove, 7-7L type feeder, 7-8 dove-tail form feeder, 7-9 offset plate, 7-10 working roll, 7-11 gap, 7-12 hydrops cell body, 7-13 circulating current, 7-14V shape purges, the auxiliary lower purging of 7-15.
[detailed description of the invention]
The present invention is below provided a kind of detailed description of the invention of novel cold milling wet leveling machine purging system.
Embodiment 1
Refer to accompanying drawing 1-8, a kind of novel cold milling wet leveling machine purging system, it contains main purging component 1-1, auxiliary purging component 1-2, the upper purging portion 7-1 (stripper 1-5 purges) of intermediate calender rolls purging component 1-3, edge purging component 1-4, main purging component 1-1 is positioned at close to the roll gap place of outlet side top working roll 7-10 with band steel upper surface, its push-and-pull Shift cylinder 1-6 is arranged on the both sides, rear end of stripper 1-5, and an oil cylinder is respectively established in both sides; The lower purging portion of main purging component 1-1 is positioned at close to the roll gap place of bottom working roll 7-10 with band steel lower surface; After vibration-resistant roller is in main purging component 1-1, with 45 ° of cant mode elevating control band steel height, and form the band ladle angle of 10 ~ 30 ° with pass line roller.
Upper " V " type purging portion 7-14 of auxiliary purging component 1-2 and lower purging portion 7-15, is in the upper and lower surface with steel between vibration-resistant roller and pass line roller respectively.
Intermediate calender rolls purging component 1-3 is on stripper, purges for roll gap near zone between intermediate calender rolls and working roll 7-10.
Edge purging component 1-4 is arranged on outside frame, after pass line roller 1-7, purges the edge of the band steel upper and lower surface leaving outlet side pass line roller.Improvement of the present invention is:
(1) optimization of main purging component
Install the nylon scraper plate 7-2 of new design processing at stripper head, the high pressure draught that in utilization, purging portion 7-1 produces forms together evenly air curtain at roll gap place, and constantly expands to both sides roller end.Meanwhile, when high pressure draught passes through the close gap with scraper plate along WR roll surface, produce the air curtain after one supercharging, and form circulating current 7-13 (i.e. sealing gland), stop from gap location drippage leveling precision.Part roll surface raffinate is brought in the scraper plate hydrops cell body 7-12 of low-pressure area along air-flow, then discharges from both-side opening.In addition, above scraper plate 7-2, installing one piece of baffle plate 7-3 additional, collecting the discharge of backward both sides by throwing the raffinate spilt between a large amount of roller.Along this baffle plate upwards to fog discharge exhausting hole place with offset plate 7-9 by the space shutoff between outlet device, play the effect of leveling precision baffle plate, from outlet device space, be splashed to belt steel surface to prevent leveling precision.
(2) improvement of intermediate calender rolls purging component
Intermediate calender rolls purging component is positioned at 70mm place above stripper, and its position is comparatively close to stripper, and air curtain together with being formed between upper WR with upper IR roll gap, for alleviating the interference of main gas seal and strengthening and purge effect.Former design Silvent705 type nozzle is changed into Silvent973 type nozzle, and gas shock shape is air knife shape by elliptical deformation, can produce wider impact air-flow, turn reduces the impact on main purging, and air curtain is evenly more concentrated.Purge more powerful more outstanding while reduction air consumption, improve roll surface and purge cleaning effect.
(3) purging component improvement under
Adopt 150mm little corner bracket 7-4 to replace intrinsic poker base, and fix tracheae 7-5 with pipe clamp, the hard tube at two ends is connected simultaneously and change flexible pipe connection into, realize purging adjustable angle.In addition, by former purging angle adjustment to 30 °, make purging closer to Roll-gap position, improve and purge effect.
(4) the limit adjustment of blowing
Because the position of edge purging component is too close to Sundwig plate shape roller 6-3, the Silvent705 blow gun of former employing purges angle and cannot regulate, and again select Silvent705A blow gun, this purges angle and can adjust within the scope of disalignment 30 °.Single blow gun is changed into two blow gun, both enhance purging effort like this, too increase limit and blow adjustability, purging scope increases to 200mm from former 100mm, makes it closer to pass line roller 6-4 simultaneously, and can make to purge up and down and can be in steel edge portion same position.The degree of regulation of side-play amount is brought up to 10mm from 20mm, and side-play amount setting is accurate more flexibly, to adapt to the needs of adjustment in time, and the purging scope wherein after 6-1 improvement, the purging scope 6-2 before improvement.
(5) accessory system improvement
Accessory system comprises compressed air air supply system and smooth drop liquid gathering system, C612 unit (C612 and production line codes, also can be described as C612 production line,) Blow-off System of Skin Pass Mill is provided with altogether 6 road purging components lower purging portion, 5. intermediate calender rolls purging component, 6. the edge purging component of purging portion, 4. auxiliary purging component (in the V-type of 1. lower purging portion, the 3. auxiliary purging component of upper purging portion (i.e. stripper purge), the 2. main purging component of main purging component), former design purging pressure is non-adjustable.From purging actual state, and non-pressure is larger, and effect is better.But adopt for difference purging function, effect, effect is formulated and is purged pressure, therefore in the upper purging portion (namely stripper purges) of corresponding main purging component, the lower purging portion of main purging component, purging portion in the V-type of auxiliary purging component, the lower purging portion of auxiliary purging component, intermediate calender rolls purging component, 6 road scavenging pipelines of edge purging component set up pressure-regulating valve, and set up compressed air filtration system, by purging gas, after double-filtration, (filtering accuracy is 5 μm and 0.1 μm) exports as high clean dry compressed air, effectively prevent spray nozzle clogging, improve purging quality.Dropping liquid gathering system mainly installs feeder: 1. baffle collected groove 7-6,2. L-type feeder 7-7,3. dove-tail form feeder 7-8 at corresponding dropping liquid point.
Wherein, 1. baffle collected groove is installed on the stripper upper end of main purging (stripper purging) parts close to roll gap place
2. L-type feeder is installed on the bottom of main purging component (stripper purging)
3. dove-tail form feeder is arranged on bottom the rear end floor beam of main purging component (stripper purging).
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (3)
1. a cold milling wet leveling machine purging system, its system contains main purging component, auxiliary purging component, intermediate calender rolls purging component, edge purging component and vibration-resistant roller, working roll, stripper, pass line roller, the upper purging portion of main purging component is positioned at close to the roll gap place of outlet side top working roll with band steel upper surface, its push-and-pull Shift cylinder is arranged on the both sides, rear end of stripper, and an oil cylinder is respectively established in both sides; The lower purging portion of main purging component is positioned at close to the roll gap place of bottom working roll with band steel lower surface; After vibration-resistant roller is in main purging component; Purging portion and lower purging portion in " V " type of auxiliary purging component, be in the upper and lower surface with steel between vibration-resistant roller and pass line roller respectively; Intermediate calender rolls purging component is on stripper; Edge purging component is arranged on outside frame, after pass line roller; It is characterized in that, be provided with scraper plate at stripper head, above scraper plate, be provided with baffle plate;
In intermediate calender rolls purging component, blow gun is equidistantly disposed in parallel in respectively along on the pipeline beam axis direction of intermediate calender rolls purging component, and the blow gun of the pipeline beam both sides of intermediate calender rolls purging component is connected by flexible pipe respectively;
It is also containing accessory system, and accessory system comprises compressed air air supply system and smooth drop liquid gathering system, and Blow-off System of Skin Pass Mill is provided with 6 road purging components, the pipeline of 6 road purging components establishes pressure-regulating valve respectively, and establishes compressed air filtration system; Dropping liquid gathering system is provided with feeder at corresponding dropping liquid point;
Described blow gun becomes fan-shaped, and blow gun front end is flat duckbill;
Blow on limit in parts, blow gun is arranged on the pipeline of purging up and down of limit purging component respectively.
2. a kind of cold milling wet leveling machine purging system as claimed in claim 1, is characterized in that, described blow gun is that 80 ~ 120mm spacing of being separated by is arranged in and purges on pipeline.
3. a kind of cold milling wet leveling machine purging system as claimed in claim 1, it is characterized in that, described feeder is baffle collected groove, L-type feeder, the one in dove-tail form feeder.
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| CN106583462B (en) * | 2016-10-31 | 2018-03-27 | 中冶南方工程技术有限公司 | A kind of planisher Strip Shape Control device and method |
| CN106734265B (en) * | 2017-01-09 | 2018-08-17 | 中冶南方工程技术有限公司 | The wet jetting piles pattern planisher strip cleaning device and its method of high-speed rolling |
| CN109290284A (en) * | 2018-09-08 | 2019-02-01 | 上海科翌机电设备有限公司 | A kind of strip calendering Blow-off System of Skin Pass Mill and its application method |
| CN113579003B (en) * | 2021-05-06 | 2023-06-23 | 中冶南方工程技术有限公司 | Levelling machine and purging process thereof |
| CN113828653A (en) * | 2021-09-30 | 2021-12-24 | 攀钢集团西昌钢钒有限公司 | Roll gap air blocking system |
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